I must enumerate you must enumerate he must enumerate we must enumerate you must enumerate they must enumerate
V-ing form
I must be enumerating you must be enumerating he must be enumerating we must be enumerating you must be enumerating they must be enumerating
Perfect
I must have enumerated you must have enumerated he must have enumerated we must have enumerated you must have enumerated they must have enumerated
V-ing perfect
I must have been enumerating you must have been enumerating he must have been enumerating we must have been enumerating you must have been enumerating they must have been enumerating
Negation
Simple form
I mustn't enumerate you mustn't enumerate he mustn't enumerate we mustn't enumerate you mustn't enumerate they mustn't enumerate
V-ing form
I mustn't be enumerating you mustn't be enumerating he mustn't be enumerating we mustn't be enumerating you mustn't be enumerating they mustn't be enumerating
Perfect
I mustn't have enumerated you mustn't have enumerated he mustn't have enumerated we mustn't have enumerated you mustn't have enumerated they mustn't have enumerated
V-ing perfect
I mustn't have been enumerating you mustn't have been enumerating he mustn't have been enumerating we mustn't have been enumerating you mustn't have been enumerating they mustn't have been enumerating
Interrogative form
Simple form
must I enumerate? must you enumerate? must he enumerate? must we enumerate? must you enumerate? must they enumerate?
V-ing form
must I be enumerating? must you be enumerating? must he be enumerating? must we be enumerating? must you be enumerating? must they be enumerating?
Perfect
must I have enumerated? must you have enumerated? must he have enumerated? must we have enumerated? must you have enumerated? must they have enumerated?
V-ing perfect
must I have been enumerating? must you have been enumerating? must he have been enumerating? must we have been enumerating? must you have been enumerating? must they have been enumerating?
Interro-negative form
Simple form
mustn't I enumerate? mustn't you enumerate? mustn't he enumerate? mustn't we enumerate? mustn't you enumerate? mustn't they enumerate?
V-ing form
mustn't I be enumerating? mustn't you be enumerating? mustn't he be enumerating? mustn't we be enumerating? mustn't you be enumerating? mustn't they be enumerating?
Perfect
mustn't I have enumerated? mustn't you have enumerated? mustn't he have enumerated? mustn't we have enumerated? mustn't you have enumerated? mustn't they have enumerated?
V-ing perfect
mustn't I have been enumerating? mustn't you have been enumerating? mustn't he have been enumerating? mustn't we have been enumerating? mustn't you have been enumerating? mustn't they have been enumerating?